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A. Giorni

Centre national de la recherche scientifique

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Featured researches published by A. Giorni.

Journal of Physics G | 1997

Equilibrium in nuclear multifragmentation and percolation, and the behaviour of the macroscopic entropy near the phase transition

A. J. Cole; A Chabane; M Charvet; P. Desesquelles; A. Giorni; D. Heuer; Annick Lleres; J. B. Viano

In this paper we attempt to explain the success of equilibrium statistical models in the analysis of products of small impact parameter heavy ion collisions. Our argument is based on an examination of restrictions on the space of microscopic states due to the dynamics of the collision process. We then proceed to consider the example of a simple cubic bond breaking percolation process. We show that slow convergence of certain physical observables near the phase transition is related to the fact that all partitions of the total number of sites have small probabilities (entropy maximum). We discuss the importance of similar behaviour for decay of highly excited nuclei.

Physical Review Letters | 1995

Time Relationships between Direct Particle Emission and Fragmentation: A Probe for Nuclear Expansion Prior to Fragment Freeze-Out

C. J. Gelderloos; John M. Alexander; N. N. Ajitanand; E. Bauge; A. Elmaani; T. Ethvignot; L. Kowalski; R. Lacey; M. E. Brandan; A. Giorni; D. Heuer; S. Kox; Annick Lleres; A. Menchaca-Rocha; F. Merchez; D. Rebreyend; J. B. Viano; B. Chambon; B. Cheynis; D. Drain; C. Pastor

Physical Review C | 1987

Energy and linear-momentum dissipation in the fusion reaction of 165Ho + 20Ne at 30 MeV/nucleon.

D. Hilscher; H. Rossner; A. Gamp; U. Jahnke; B. Cheynis; B. Chambon; D. Drain; C. Pastor; A. Giorni; C. Morand; A. Dauchy; P. Stassi; G. Petitt

Physical Review C | 1993

Li-Li azimuthal angular correlations: A test for emission from a rotating source versus instantaneous multifragmentation

T. Ethvignot; J. Alexander; A.J. Cole; A. Elmaani; P. Désesquelles; H. Elhage; A. Giorni; D. Heuer; S. Kox; A. Lleres; F. Merchez; C. Morand; D. Rebreyend; P. Stassi; J. B. Viano; F. Benrachi; B. Chambon; B. Cheynis; D. Drain; C. Pastor

Physical Review C | 1995

Emission times for energy selected {sup 1,2,3}H ejectiles from central collisions: 1360 MeV {sup 40}Ar+Ag

C. J. Gelderloos; Rulin Sun; N. N. Ajitanand; John M. Alexander; E. Bauge; A. Elmaani; T. Ethvignot; R. Lacey; M. E. Brandan; A. Giorni; D. Heuer; S. Kox; A. Lleres; A. Menchaca-Rocha; F. Merchez; D. Rebreyend; J. B. Viano; B. Chambon; B. Cheynis; D. Drain; C. Pastor

Physical Review C | 1993

Multidetector study of primary projectilelike fragments in the reaction [sup 40]Ca+[sup nat]Cu at 35 MeV/nucleon

A. Lleres; A. Giorni; H. Elhage; M. E. Brandan; A.J. Cole; P. Désesquelles; D. Heuer; A. Menchaca-Rocha; J.B. Viano; F. Benrachi; B. Chambon; B. Cheynis; D. Drain; C. Pastor

Physical Review C | 1992

Charged particle multiplicities in reactions of Ag with sup 40 Ar of 7, 17, 27, and 34 MeV/nucleon

M. T. Magda; T. Ethvignot; A. Elmaani; J. Alexander; P. Desesquelles; H. Elhage; A. Giorni; D. Heuer; S. Kox; Annick Lleres; F. Merchez; C. Morand; D. Rebreyend; P. Stassi; J. B. Viano; F. Benrachi; B. Chambon; B. Cheynis; D. Drain; C. Pastor

Physical Review C | 1996

Size effect in the deexcitation of hot nuclei

P. Désesquelles; A. Lleres; M. Charvet; A.J. Cole; A. Giorni; D. Heuer; J.B. Viano

Physical Review C | 1993

Light particle emission in the reaction 144Sm(32S, fission) at Elab=838 MeV.

F. Benrachi; B. Chambon; B. Cheynis; D. Drain; C. Pastor; H. Rossner; D. Hilscher; B. Gebauer; D. Husson; A. Giorni; D. Heuer; A. Lleres; P. Stassi; J. B. Viano

Physical Review C | 1992

Evolution of fragment-fragment correlations in reactions of sup 197 Au and sup 107,109 Ag with sup 40 Ar from 7 A to 34 A MeV

T. Ethvignot; N. N. Ajitanand; J. Alexander; E. Bauge; A. Elmaani; Ludwik Kowalski; M. Lopez; M. T. Magda; P. Désesquelles; H. Elhage; A. Giorni; D. Heuer; S. Kox; A. Lleres; F. Merchez; C. Morand; D. Rebreyend; P. Stassi; J. B. Viano; F. Benrachi; B. Chambon; B. Cheynis; D. Drain; C. Pastor

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